Adjustable high chair



FIG. 1 is a front elevational view of an adjustable high chair showingmy new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front perspective view thereof;

FIG. 8 is a front perspective view of the adjustable high chair with thetray removed for convenience of illustration; and

FIG. 9 is a front perspective view of the adjustable high chair showingthe adjustable seat in a lower position.

The ornamental design for an adjustable high chair, as shown anddescribed.